Knife-cleaning machine.



No. 832.684. v PATENTED 0019, 1906.

S.'B. TRAUB.

KNIFE CLEANING MACHINE. APPLIOATION FILED APB-26.1905.

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No. 832.884. f PATENTED 001 9, .1906. s. B. TRAUB.

.KNIFE CLEANING MACHINE. V

APPLIOATION FILED 141.26. 1905.

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11: NORRIS PITIRS (20., WASHINGTON, n. c.

S. B. TRAUB.

KNIFE CLEANING MACHINE.

APPLICATION FILED APB.26. 1905.

N@.as2,a4. PATBNTPQD 00129, 1906. I

s SHEETS-48111331 st UNITED STATES PATENT oFFroE.

SAMUEL B. TRAUB, OF CHICAGO, ILLINOIS, ASSIGNOR TO GEORGE S.

BLAKESLEE, OF CHICAGO, ILLINOIS.

KNIFE-CLEANING MACHINE.

Specification of Letters Patent.

Patented Oct. 9, 1906.

Application filed April 26,1905. Serial No. 257,524. I

To all whom it may concern.- Be it known that I, SAMUEL B. TRAUB, a citizen of the United States, residing at Ohicago, in the county of Cook and State of Illino1s, have invented certain new and useful Improvements in Knife-Cleaning Machines, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to knife cleaning machines, and has for its object to provide certain improvements in machines of that character, which will be hereinafter pointed out.

What I regard as new is set forth in the claim.

line 6 6 of Fig. 5.

I11 the accompanying drawings, Figure 1 is a plan view of my improved machine. Fig. 2 is an end view. Fig. 3 is a section on line 3 3 of F ig. 1. Fig. 4 is a section on line 4 4 of Fig. 1. Fig. 5 is a side elevation of one of the polishing-wheels. Fig. 6 is a section on Fig. 7 is an end view of the parts shown in Fig. 8, and Fig. 8 is a section illustrating the one of the polishing-wheels is driven.

My improved knife-cleaning machine, gen erally speaking, consists of a pair of wheels or disks which aredriven either by hand or by power and are arranged to be adjusted toward and. from one another to vary the distance between them, and thereby vary the pressure upon the knife-blades. When bemg cleaned, the knives rest on a suitable support arranged opposite the meeting surfaces of the cleaning or polishing disks and are en gaged by said disks, which carry on their peripheries a band of suitable material, such as elk-skin. The support or rest for the knives is vertically adjustable to vary the position in which the knives are held with reference to the polishing-disks.

Referring now to the drawings for a de tailed description of my improved machine as illustrated therein, 9 indicates the base of the machine, which is supported on suitable legs 10.

11 indicates a main drive-shaft which is supported in suitable bearings in standards 12 13 14, as shown in Figs. 1 and 4. The standard 12 is near one end of the base 9 and at one side thereof, while the standards 13 14 are near the opposite end of the base and in line with the standard 12. The standards connection through which 13 14 are set a sufficient distance apart so that one of the polishing-disks 15 may rotate freely between them, said disk being mounted upon the shaft 11 between said standards, as shown in Fig. 1.

16 17 indicate fast and loose pulleys, respectively, mounted on a projecting end of t e shaft 11 for driving said shaft by power. said pulleys may be connected up by a belt in the usual way, operated by means of a belt-shifter to engage or disengage one or the other of the pulleys 16 17.

18 indicates a beveled pinion mounted on the shaft 1]. and longitudinally adjustable thereof. Said pinion is held in place by a set-screw 19, as shown in Fig. 1. The pinion 18 is adapted to engage or disengage abeveled gear 20, carried on a shaft 21, which is mounted in a suitable bearing in a standard 22. As shown in Fig. 1, the shaft 21 is arranged perpendicularly to the shaft 11, so that the pinion 18 and gear 20 may roperly mesh with each other. Consequentl y by rotating the shaft 21 the shaft 11 may be driven.

23 indicates a crank mounted on the shaft 21 for rotating the same. By this construction the shaft 11 may be driven either by hand or by power. When driven by hand, the pinion 18 is in mesh with the gear 20; but when driven by power said pinion is moved out of engagement with the gear 20.

24 indicates a second polishing wheel or disk which is adapted to coact with the disk 15, being arranged adjacent thereto and in line therewith, as shown in Fig. 1. The disk 24 is mounted on a short shaft 25, which is itself mounted in suitable bearings in standards 26 27, corresponding with the standards 13 14, as shown in Figs. 1 and 3. The shaft is rotated to rotate the disk 24 by means of a shaft 28, which is mounted in a suitable bearing in a standard 29, which corresponds with the standard 12 and is arranged adjacent thereto on the base 9, as shown in Fig. 1. The shaft 28 is driven from the shaft 11 by means of intermeshing gears 30 31, mounted, respectively, on said shafts 11 and 28, as shown in Fig. 1, so that said shafts rotate in opposite directions. The shaft 28 is connected to the shaft 25 by a coupling-shaft 32. (Best shown inFig. 3.)

As therein shown, the coupling-shaft 32 carries at its ends coupling-disks 33 34, which ject of are connected, respectively, with couplingdisks 35 36, mounted on the ends of the shafts 25 and 28. The coupling-disks 33 34 are provided centrally with a ball or globular boss 37, which fits into a suitable socket in the opposing disk, and the disks 33 34 are also provided with pins 38, which project into holes 39 in the disks 35 36, respectively, as shown in Figs. 3- and 8. By this construction a flexible connection is provided between the shait 28 and the shaft 25, the obwhich is to permit lateral adjustment of the disk 24 independently of the shaft 28.

As best shown in Fig. 3, the standards 26 27 are not mounted directly upon the base 9, but are mounted upon a plate 40, which is movable transversely of the base 9, being connected thereto by a bolt 41, which moves in a transverse slot 42 in the base, as shown in Fig. 3 and as indicated by dotted lines in Fig. 1. By tightening the nut 43 of the bolt 41 the standards 26 27 may be secured in any desired position of adjustment. The object of this arrangement is to permit of the disks 15 and 24 being adjusted relatively to each otherthat is to say, the disk 24 may be moved toward or from the disk 15, so as to reduce or increase the space between said disks, and thereby vary their pressure upon the knives.

44 indicates the knife rest, which, as shown in Figs. 2 and 4, is arranged opposite the meeting portions of the disks 15 and 24, so that the knives to be cleaned may rest upon. the upper edge thereof. The kniferest 44 is bent substantially at right angles and extends laterally under the base 9, being mounted between its ends upon a pivot 45, so that it is free to rock to raise and lower its upper or operative end. The outer end portion 46 of the knife-rest 44 is engaged by an adjusting-screw 47, mounted in the base 9, as shown in Fig. 2. By this construction by adjusting the screw 47 the position of the knife-rest may be adjusted at pleasure. 48

indicates a pan arranged under the meeting l l l portions of the polishing-disks to receive dust or other matter falling therefrom.

The construction of the polishing-disks is best shown in Figs. 5 and 6. As therein shown, the central portion or hub 49 of each disk is a cylindrical casting having trans verse grooves 50 at intervals around its periphery. The periphery of said hub is also provided with annular grooves 51, as shown in Fig. 6. Outside of the hub 49 is a belt 52,

' of vulcanized rubber or equivalent material, which is properly held in place by the grooves 50 51, into which it extends. The rim 53 of the disk is formed of a strip of elk-skin, which is fitted upon the rubber belt 52 and is secured thereto by gluing or in any other suitable way.

In practice the disks 15 24 are caused to rotate rapidly in opposite directions, and emery dust, powdered carborundum, or other equivalent material is applied thereto. The knives are then inserted successively between the disks resting on the support 44.

NVhile I have described specifically the embodiment of my improved machine illustrated in the drawings, I wish it to be understood that I do not restrict myself to the specific details of the construction described and shown, except in so far as they are particularly claimed.

That which I claim as my invention, and desire to secure by Letters Patent, is

A knife-cleaning machine, comprising a pair ofcoacting disks, a drive-shaft'ior driving said disks, means operated by said driveshaft for rotating said disks in opposite directions, fast and loose pulleys for driving said shaft by power, hand-operated mechanism for driving said shaft, and means for connecting and disconnecting said hand-operated mechanism with saidshaft, substantially as described.

SAMUEL B. TRAUB.

Wi ses:

S. TRELEVEN,

tnes M. G. R. BLAKESLEE. 

